Low proportion of images using modern formats

Most of the images on your site are still using older file formats (JPEG or PNG) rather than modern formats like WebP or AVIF, which deliver the same visual quality at a significantly smaller file size. Larger image files slow page load times, pushing up your Largest Contentful Paint (LCP) score — a Core Web Vitals metric Google uses for ranking. Switching to modern formats typically cuts image file sizes by 25-50% with no visible quality loss. Ask your developer to convert images to WebP or AVIF format and serve them instead of JPEG/PNG. Most image editing tools, CDNs, and website platforms (including WordPress and Shopify) can automate this conversion. Ensure fallbacks remain for older browsers.

Why this matters

Larger image files slow page load times, pushing up your Largest Contentful Paint (LCP) score — a Core Web Vitals metric Google uses for ranking. Switching to modern formats typically cuts image file sizes by 25-50% with no visible quality loss.

How to fix it

Ask your developer to convert images to WebP or AVIF format and serve them instead of JPEG/PNG. Most image editing tools, CDNs, and website platforms (including WordPress and Shopify) can automate this conversion. Ensure fallbacks remain for older browsers.